package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.PasswordConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.EmployeeDTO;
import com.sky.dto.EmployeeLoginDTO;
import com.sky.dto.EmployeePageQueryDTO;
import com.sky.entity.Employee;
import com.sky.exception.AccountLockedException;
import com.sky.exception.AccountNotFoundException;
import com.sky.exception.PasswordErrorException;
import com.sky.mapper.EmployeeMapper;
import com.sky.result.PageResult;
import com.sky.service.EmployeeService;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.time.LocalDateTime;

@Service
public class EmployeeServiceImpl implements EmployeeService {

    @Autowired
    private EmployeeMapper employeeMapper;

    /**
     * 员工登录
     *
     * @param employeeLoginDTO
     * @return
     */
    public Employee login(EmployeeLoginDTO employeeLoginDTO) {
        String username = employeeLoginDTO.getUsername();
        String password = employeeLoginDTO.getPassword();

        //1、根据用户名查询数据库中的数据
        Employee employee = employeeMapper.getByUsername(username);

        //2、处理各种异常情况（用户名不存在、密码不对、账号被锁定）
        if (employee == null) {
            //账号不存在
            throw new AccountNotFoundException(MessageConstant.ACCOUNT_NOT_FOUND);
        }

        //密码比对
        //进行md5加密，然后再进行比对
        password = DigestUtils.md5DigestAsHex(password.getBytes());
        if (!password.equals(employee.getPassword())) {
            //密码错误
            throw new PasswordErrorException(MessageConstant.PASSWORD_ERROR);
        }

        if (employee.getStatus() == StatusConstant.DISABLE) {
            //账号被锁定
            throw new AccountLockedException(MessageConstant.ACCOUNT_LOCKED);
        }

        //3、返回实体对象
        return employee;
    }

    /**
     * 新增员工
     */
    @Override
    public void addEmp(EmployeeDTO empDto) {
        Employee employee = new Employee();
        //拷贝属性
        BeanUtils.copyProperties(empDto, employee);
        //补充属性
        //密码加密
        employee.setPassword(DigestUtils.md5DigestAsHex(PasswordConstant.DEFAULT_PASSWORD.getBytes()));
        employee.setStatus(StatusConstant.ENABLE);
//        employee.setCreateTime(LocalDateTime.now());
//        employee.setUpdateTime(LocalDateTime.now());
        //从ThreadLocal中获取当前登录用户的ID
//        employee.setCreateUser(BaseContext.getCurrentId());
//        employee.setUpdateUser(BaseContext.getCurrentId());
        //调用mapper层方法新增对象到数据库中
        employeeMapper.addEmp(employee);
    }
    /**
     * 分页查询员工信息
     */
    @Override
    public PageResult page(EmployeePageQueryDTO empDto) {
        //1.设置分页参数
        PageHelper.startPage(empDto.getPage(), empDto.getPageSize());
        //2.调用mapper查询,强转返回类型为page
        Page<Employee> empList = employeeMapper.empPage(empDto.getName());
        //3.封装pageResult并返回
        return new PageResult(empList.getTotal(), empList.getResult());
    }

    /**
     * 启用禁用员工账号
     */
    @Override
    public void start0rStop(Integer stasus, Long id) {
        Employee employee = Employee.builder().status(stasus).id(id)
//                .updateTime(LocalDateTime.now()).updateUser(BaseContext.getCurrentId())
                .build();
        employeeMapper.start0rStop(employee);
    }
    @Override
    public Employee getById(Long id) {

        return employeeMapper.getById(id);
    }
    /*
    * 编辑员工信息
     */
    @Override
    public void update(EmployeeDTO empDto) {
        Employee employee = new Employee();
        //拷贝属性
        BeanUtils.copyProperties(empDto,employee);
        //补充属性
//        employee.setUpdateTime(LocalDateTime.now());
//        employee.setUpdateUser(BaseContext.getCurrentId());
        employeeMapper.start0rStop(employee);

    }
}









